Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d1dba0fc authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

metag: Use generic idle loop 



Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: default avatarCc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: James Hogan <james.hogan@imgtec.com>
Link: http://lkml.kernel.org/r/20130321215234.606480852@linutronix.de


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent dfa174dc

arch/metag/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ config METAG 
	select EMBEDDED

	select GENERIC_ATOMIC64

	select GENERIC_CLOCKEVENTS

	select GENERIC_IDLE_LOOP

	select GENERIC_IRQ_SHOW

	select GENERIC_SMP_IDLE_THREAD

	select HAVE_64BIT_ALIGNED_ACCESS

arch/metag/kernel/process.c

+6 −29
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <linux/pm.h>

#include <linux/syscalls.h>

#include <linux/uaccess.h>

#include <linux/smp.h>

#include <asm/core_reg.h>

#include <asm/user_gateway.h>

#include <asm/tcm.h>
@@ -31,7 +32,7 @@ 
/*

 * Wait for the next interrupt and enable local interrupts

 */

static inline void arch_idle(void)

void arch_cpu_idle(void)

{

	int tmp;
@@ -59,36 +60,12 @@ static inline void arch_idle(void) 
		      : "r" (get_trigger_mask()));

}



void cpu_idle(void)

{

	set_thread_flag(TIF_POLLING_NRFLAG);



	while (1) {

		tick_nohz_idle_enter();

		rcu_idle_enter();



		while (!need_resched()) {

			/*

			 * We need to disable interrupts here to ensure we don't

			 * miss a wakeup call.

			 */

			local_irq_disable();

			if (!need_resched()) {

#ifdef CONFIG_HOTPLUG_CPU

				if (cpu_is_offline(smp_processor_id()))

void arch_cpu_idle_dead(void)

{

	cpu_die();

#endif

				arch_idle();

			} else {

				local_irq_enable();

			}

		}



		rcu_idle_exit();

		tick_nohz_idle_exit();

		schedule_preempt_disabled();

	 }

}

#endif



void (*pm_power_off)(void);

EXPORT_SYMBOL(pm_power_off);

arch/metag/kernel/smp.c

+1 −1
Original line number Diff line number Diff line
@@ -297,7 +297,7 @@ asmlinkage void secondary_start_kernel(void) 
	/*

	 * OK, it's off to the idle thread for us

	 */

	cpu_idle();

	cpu_startup_entry(CPUHP_ONLINE);

}



void __init smp_cpus_done(unsigned int max_cpus)